Linear Motion Guides from Tallman Robotics Limited for a client from Spain are Being Produced.
What are the Main differences between ball screw Linear Module and T-shaped screw Linear Guide?
Many customers will have some questions when selecting the module slide – what are ball screw linear guide rails? What are t-screw linear guide rails ?
The main difference between ball screw linear motion guide rods and T-shaped screw linear motion guide rods lies in the transmission mode of load between moving surfaces
(1) The ball screw of linear motion guide rails adopts circular ball bearing to reduce friction and improve efficiency.
(2) T-type lead screw of linear motion guide rails adopts sliding surface between low friction coefficient. Therefore, T-shaped screw generally can not reach the efficiency of ball screw (about 90%).
(3) The simple analysis of friction and wear mechanism shows that the predictability of sliding friction is necessarily lower than that of transmission using ball technology.
To sum up, there are fundamental differences between ball screw and T-shaped screw in application field due to their different prediction ability of performance and service life.
(1) Ball screw has the advantages of load, stiffness, efficiency, load cycle and predictability, but the cost is high. Although the ball screw is more cost-effective than other translational linear motion schemes, its design is more complex and requires hardened precision bearing surfaces and ball circulators.
(2) The size of T-shaped screw is very small, the design is very flexible, the noise is very small when used correctly, and the corrosion resistance is good. It can be used to meet the requirements of vertical application and self-locking function. They play an important role in many applications, but they also have limitations.
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